<!DOCTYPE html>
<html lang="en">
<head> 
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>404</title>
  <style>
    .text-center{
      text-align: center;
    }
  </style>
</head>
<body>
    <h1 class="text-center">404</h1>
    <h2 class="text-center">sorry! not found!!!</h2>
    <div class="text-center">
      <span id="#time">3秒后将返回首页</span>
    </div>
</body>
</html>



<!-- doctype html
html
  head
    title 404
    meta(charset="uft8")
    style(ref="stylesheet").
      .text-center{
        text-align: center;
      }
  body
    h1.text-center 404
    h2.text-center sorry! not found!!!

    div.text-center
      span#time 3
      |秒后将返回首页
    
    script.
      let n = 3
      const fn = () => {
        time.innerHTML = --n
        if(n === 0)location.href = "/"
      }
      setInterval(fn, 1000) -->
